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Common Ion Effect

Which one of ...

Question

Which one of the following is the correct representation of the solubility of SnS₂?

[Sn²⁺][S²]²

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[Sn⁴⁺][ S^2-]²

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[Sn⁴⁺]²[S²]

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[Sn²⁺]³[S²]

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Solution

The correct option is B
[Sn⁴⁺][ S^2-]²

SnS₂ ⇌ Sn⁴⁺ + 2S^2-

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Similar questions

The correct representation for solubility product of SnS₂ is:

[1] P b^{2 +} > P b^{4}, S n^{2 +} > S n^{4 +}

[2] P b^{2 +} < P b^{4}, S n^{2 +} < S n^{4 +}

[3] P b^{2 +} > P b^{4}, S n^{2 +} < S n^{4 +}

[4] P b^{2 +} < P b^{4}, S n^{2 +} > S n^{4 +}

[5] S n^{2 +} < P b^{2 +}, S n^{4 +} > P b^{4 +}

[6] S n^{2 +} < P b^{2 +}, S n^{4 +} < P b^{4 +}

P b^{4 +} + S n^{2 +} \to S n^{4 +} + P b^{2 +}

S n^{4 +} + P b^{2 +} \to P b^{4 +} + S n^{2 +}

E_{P b^{4 +} / P b^{2 +}}^{o} = 1.69 V, E_{S n^{4 +} / S n^{2 +}}^{o} = 0.15 V

H A s O_{2} + S n^{2 +} \to A s + S n^{4} + H_{2} O

298 K

2 F e^{3 +} + S n^{2 +} \to 2 F e^{2 +} + S n^{4 +}

E_{S n^{4 +} / S n^{2 +}}^{\circ} = 0.15 v o l t; E_{F e^{3 +} / F e^{2 +}}^{\circ} = 0.771 v o l t

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